IM_ONE_Safety-07
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5
PART II - WIRING
Removing the One Series
Field Safety System™
Enclosure Cover and Display Module
TO PREVENT ELECTROSTATIC DISCHARGE WIPE DOWN COVER AND ENCLOSURE OF ANY DUST BUILD-UP BEFORE REMOVING COVER.
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING DEVICE. WIRE DEVICE IN ACCORDANCE WITH LOCAL AND
NATIONAL ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE AND RECOMMENDED TIGHTENING
TORQUE FOR FIELD WIRING TERMINAL BLOCKS ARE SHOWN WITHIN TABLE 2 (PAGE 5).
TO PREVENT SEIZURE OF ENCLOSURE COVER, DO NOT REMOVE LUBRICANT. THREADS SHOULD ALSO BE FREE OF DIRT
AND OTHER CONTAMINANTS.
Remove the enclosure cover by turning it counter-clockwise for 8 revolutions (Figure 3). Carefully remove the display
module by grasping the outer edge and pulling it away from the base enclosure (Figure 4), being careful not to
strain any of the wired connections. Allow the display module to hang from the wired connections to access the base
enclosure and terminal blocks for wiring. Do not remove the display module wire assemblies. Insert the field wiring
through the conduit opening(s) of the base enclosure. Make the connections as shown within the wiring diagrams
(Figure 5-6, page 6).
The primary chassis and equipment grounding terminal
is provided inside the
base enclosure.
Cleaning the display and keypad surface should be performed with a damp cloth only. Do not attempt to wash down
the One Series with the cover removed.
Tools Required:
Small flat-head screwdriver; wire strippers
TO PREVENT IGNITION, DISCONNECT POWER BEFORE REMOVING ENCLOSURE COVER. KEEP COVER TIGHT WHILE IN OPERATION. DO NOT
DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
DO NOT REPLACE COMPONENTS UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
THE DEVICES SHALL BE PROPERLY GROUNDED IN THE END USE APPLICATION USING THE GROUND SCREWS PROVIDED WITH THE
ENCLOSURE.
FIELD WIRING MUST BE RATED 105°C MINIMUM. FOR AMBIENT TEMPERATURES BELOW -10
°
C, USE SUITABLE FIELD WIRING.
MODEL 2SLP IS LOOP-POWERED AND OBTAINS OPERATING POWER FROM THE 4-20 mA LOOP. THE POWER SUPPLY PROVIDING POWER TO THE LOOP
MUST BE CLASS 2 OR SELV AND CURRENT LIMITED. THE MAXIMUM LOAD RATING FOR THE SAFETY RELAY OUTPUT (SRO) IS SHOWN IN TABLE 3 ON PAGE
6. OVERLOADING THE SAFETY RELAY OUTPUT (SRO) MAY CAUSE FAILURE. THE SRO MUST NOT BE CONNECTED DIRECTLY TO A POWER SUPPLY WITHOUT
A SUITABLE SERIES LOAD.
Terminal Block and Torque Details
Description
Max. Wire Gauge
Min. Wire Gauge
Recommended Tightening Torque
TB1
3-Position
14 AWG
22 AWG
3.50 in-lbs. or 0.4 Nm
TB2
4-Position
14 AWG
26 AWG
3.50 in-lbs. or .4 Nm
TB3
2-Position
16 AWG
26 AWG
2.2 in-lbs. or .25 Nm
TB4
2-Position
16 AWG
26 AWG
2.2 in-lbs. or .25 Nm
NOTE:
The sensor’s 4-conductor ribbon cable assembly must remain connected to the display module with the red wire oriented to the arrow on
the label at the rear of the module. Reversing this connector will result in measurement errors or failure. Please refer to the wiring diagrams
beginning on page 6.
Figure 3
Figure 4
Table 2